4X20 Character Yellow Slim OLED Module

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4 Rows | 20 Characters
Display Color:
Display Type:
Slim Character OLED Module
Product Status:


A replacement part can be found here.

  • Yellow 4x20 character Slim OLED display front ON
  • Yellow 4x20 character Slim OLED display front OFF
  • Yellow 4x20 character Slim OLED display PCB back
  • Drawing Specification for NHD-0420CW-AY3

NHD-0420CW-AY3 | 4x20 Characters | Slim OLED Module | Yellow Color | Double Height Characters | Discontinued EOL Product

This monochrome OLED slim character display offers high contrast viewing with vibrant yellow text set against a deep black background. The OLED display technology is engineered to provide high visibility and ensure easy readability from any angle in different environments. This passive-matrix display has 4/8-bit Parallel, SPI or I2C interface compatibility options, and it’s fully compatible with Arduino, which allows for seamless integration with many different electronic systems for a wide range of applications. The display also comes equipped with three built-in font tables, each with double height characters, as well as a US2066 controller.

Designed to withstand extreme operating conditions, the NHD-0420CW-AY3 model operates exceptionally when used within a temperature range from -40 to 85 degrees Celsius. It supports 5V or 2.8V power supply for operation and is RoHS compliant.

Discontinued EOL Product: This display has been discontinued and is not available for purchase.

OLED Product Specifications

Number of Characters: 20
Number of Rows: 4
Display Format: 4 x 20
Display Type: Slim Character OLED Module
Display Color: Yellow
Outline L x W x H: 92.0mm x 31.5mm x 6.5mm
Viewing Area L x W: 72.42mm x 22.82mm
Active Area L x W: 70.42mm x 20.82mm
Supply Voltage: 2.8V or 5V
Interface: Parallel, SPI or I2C
Compatibility: Arduino and similar development boards
Controller Type: US2066
Connection Type: 1x20 Thru Hole with 2.54mm pitch
Operating Temperature: -40°C ~ 85°C
Storage Temperature: -40°C ~ 90°C
Added Feature: Double Height Characters

OLED Custom Solutions

Custom OLED Cables

Cable Customization

Adjust the length, position, and pinout of your cables or add additional connectors. Get a cable solution that’s precisely designed to make your connections streamlined and secure.

Custom OLED Connectors

Connector Customization

Easily modify any connectors on your display to meet your application’s requirements. Our engineers are able to perform soldering for pin headers, boxed headers, right angle headers, and any other connectors your display may require.

Custom OLED Interface

Interface Customization

Choose from a wide selection of interface options or talk to our experts to select the best one for your project. We can incorporate HDMI, USB, SPI, VGA and more into your display to achieve your design goals.


PCB Modifications

Choose from a wide selection of changes including shape, size, pinout, and component layout of your PCB to make it a perfect fit for your application.

Quality Standards

At Newhaven Display we strive every day to provide our customers with the highest quality products. This means Quality, Engineering, and Manufacturing teams are aligned to exceed your expectations.

Our customers should expect their products to meet or exceed the following standards:

All Products

Reliability Testing Customers can expect all production parts to meet or exceed operational requirements over temperature, humidity, and vibration.
Glass Cleanliness Customers can expect glass to be protected by liners and presented mindful of cleanliness standards. This means glass will be clean of contaminants, fingerprints, and other foreign material.
Bezel Appearance Bezels will be uniformly painted free of foreign materials and distracting cosmetic blemishes. Our standards maintain a clean scratch-free surface.
PCB Appearance PCB’s are delivered with long-term reliability in mind. Finishes are free of bubbles, foreign contaminants, and meet all UL fire requirements. PCB materials will always be delivered within industry norms. PCB edges will be cleanly cut and void of burrs.
Soldering Soldering of all leaded and SMT components is consistent in providing the mechanical security and electrical connectivity.
Consistency Our manufacturing and inspection processes ensure product consistency from lot to lot. This means orders processed over the years will continually meet your expectations. We do this by exacting manufacturing specifications, with attention to detail in our processes, and by comparing to the golden units.
Product Integrity Quality in product manufacturing ensures integrity in construction. Customers can expect tight assembly without worry of loose parts or missing material. Our products will meet all environmental expectations including temp, humidity, & vibration conditions.
Glass Color While normal variations of glass color may occur (due to manufacturing tolerances), Newhaven Display maintains color compliance per internal approved color charts. These charts are maintained to ensure any minor glass deviations are identified and corrected as needed.
ESD Protection & Safety All devices are designed and handled in consideration of ESD protection. This includes ESD-SAFE packaging within anti-static bags, wraps, and trays. Customers are reminded to always follow ESD safety to best protect the devices.

Our Distributors

Newhaven Display partners with distributors worldwide to bring you the best products and design services, no matter where you are working from.



  • 5

    Gregory M on Jun 6th 2024

    The oled was exactly what I needed for my project.